Albert a



(No ModeL) A. A. YOUNG. AIR MATTRESS STAY.

No. 496,030. Patented Apr. 25, 1893.

M55555. F 5" 2/ r UNITED STATES PATENT OFFICE.

ALBERT A. YOUNG, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO DAVID HALE, OF SAME PLACE.

Al R-MATTRESS STAY.

SPECIFICATION forming part of Letters Patent No. 496,030, dated April 25, 1893.

Application filed December 12, 1892- Serial No. 454,936. (No model.)

To all whom it may concern: ure being applied to the sack tending to dis- Be it known that I, ALBERT A. YOUNG, of tort the walls in parts of said sack where the Boston, in the county of Suifolk,State of Maspressure does not come, exerts a strain on sachusetts, have invented certain new and the corresponding stays. This causes them useful Improvements in Air Goods, of which to tend to spread where they pass through the following is a description sufficiently full, the slot,f, (as shown in Fig. 5) frequently tearclear, and exact to enable any person skilled ing the walls of the sack at the ends of the in the art or science to which said invention slot. Such tearing admits air under the cap, appertains to make and use the same, referit, forcing said cap outward and detaching it 1o ence being had to the accompanying drawfrom the rubber-coated face of the sack walls. ings, forming part of this specification, in The constant play of these walls also extends which i I the tear caused by the separation of the stays Figure 1 is a top plan view of an air-matuntil such tear frequently extends beyond tress or cushion constructed in accordance the cap, h, collapsing the sack and rendering I 5 with my improvement. Fig. 2 is a sectional it useless. My improvement overcomes this view enlarged of a portion of the air-sack objection. In carrying it out, after the ends, showing my improved method of attaching g, of the stays have been passed through the the stays; Fig. 3 a top plan view of the same, slots, f, and secured to the gummed face of the cap being broken away; Fig. t a plan the wall-sacks I dispose a rectangular sheet, 20 view with the cap broken away showing modi- 7a, of friction-cloth over the point of spreadfication; Fig. 5 a sectional View showing use ing of the stay ends and longitudinally of the of a single stay; and Fig. 6 a plan view with slot. This friction-cloth is prepared on both the caps broken away. faces with gum-rubber and. is exceedingly Like letters of reference indicate corretough. Transversely of said sheet and lon- 2 5 sponding parts in the different figures of the gitudinally of the stay ends I attach a secdrawings. ond-sheet, m, of like material, said sheet over- My invention is designed as an improvelapping slightly the ends of the stays. Over ment on the device shown in United States the whole I secure the cap, it, of rubber-faced Letters Patent, numbered 325,227, dated Aucloth. The whole is then vulcanized forming o gust 25, 1885, granted to me for an improvean air-tight connection. As the tendency of ment in life saving mattresses, and relates the companion stays, b, is to spread,the sheet especially to that class of air goods which of friction-cloth, m, securely holds their flatcom prise an inflatable sack and are employed tened ends together overcoming this tendency for mattresses, cushions and similar articles, and preventing them from tearing open the 5 the object being to provide means for staying slot, f. The sheet, k, may be omitted and a the walls of the air-sack, whereby a more dusheet, m of double T-shape and running rable device is produced and the danger of longitudinally of the stay-ends, g, may be emaccidental leakage is obviated. In goods of ployed, the heads, 19, of said sheet overlapping this class as ordinarily constructed the walls, the sides of the stay and attaching to the 0 40 A B, of the air-sack are connected by stays gummed-face of the sack-wall. This frictionto hold them in position and prevent the sack cloth forms an exceedingly rigid connection from becoming distorted under the weight of between the ends of the stays and being vulthe user. These stays usually comprise two canized also to the cap, h, effectually prevents tapes or cords, b, which are passed through the separation of said stays and the tearing 5 45 the slots, f, in the walls, A B. The ends, g, of the sack-wall.

of the tape are then spread in opposite direc- It Wlll be understood that it is not essential tions and laid against the outer or rubberto use two stays, b, as a single stay having its coated face of the air-sack. These ends are ends split to overlap the sack-walls at opthen covered by a circular cap, h, which is posite sides of the slot may be employed or [0O 50 vulcanized onto the face of the air-sack seany form of forked end to the stay may be curing said ends in position. Constant pressused without departing from the spirit of my invention. Such form is shown in Figs. 5 and 6. The stay, 6 has its ends split longitudinally and centrally forming flaps, g*, which are bent in opposite directions over the gummed-face of the sack-walls. A disk, m of friction-cloth holds these ends and is surmounted by the cap, 71. This form is preferable in some respects to the others as it is much cheaper while equally efiectiv'e.

Having thus explained myinventiomwhat I claim is- 1. In an air-sack astay connectingthe sack walls and passing through slots therein, the ends of said stay being divided and secured to the outer faces of said walls at opposite sides of the slots in combination with a sheet of friction-cloth or similar material connecting the members of said ends and a'cap-piece covering said sheet and stay ends, said cap being secured to the sack-walls.

2. In an air-sack of the class described, a stay, connecting and passing through slots in the sack-walls, the ends thereof being secured to the outer face of said walls and respectively at opposite sides of the slot in combination with a sheet of friction-cloth or similar material secured to the ends of said stays whereby they are prevented from spreading, substantially as described.

3. In an air-sack the combination with the sack-walls having the stay-slots, of the double end stay passing through said slots and having its ends spread and secured to the faces of said walls; a sheet of friction-cloth or similar material, vulcanized onto the ends of said stay and a cap, h, covering said stay ends, substantially as described.

4. In an air-sack, the rubber-faced walls,A B, provided with the slots, f, in combination with the stays, 11, passing through said slots and having their ends, g, secured to the gummed faces of said walls; a transversely arranged sheet of friction-cloth, 7c, and the longitudinally arranged sheet of frictioncloth, m vulcanized onto said stay ends and the cap, h, secured to said walls and covering said sheets, all being arranged to operate substantially as described.

5. In an air-sack of the class described, the stays, 11, passing through slots in the sackwalls and having their ends, g, secured to the gummed faces thereof in combination with a sheet of f riction-cloth or similar material secured to and connecting said stay ends, substantially as and for the purpose set forth.

ALBERT A. YOUNG. Witnesses:

K. DURFEE, O. M. SHAW. 

